code: def setUp(self):
      super().setUp()
      self.env = catch.Catch()
      self.action_spec = self.env.action_spec()
      self.num_actions = self.action_spec.num_values
      self.obs_spec = self.env.observation_spec()
      self.agent = agent_lib.Agent(
          num_actions=self.num_actions,
          obs_spec=self.obs_spec,
          net_factory=haiku_nets.CatchNet,
      )
  
      self.key = jax.random.PRNGKey(42)
      self.key, subkey = jax.random.split(self.key)
      self.initial_params = self.agent.initial_params(subkey)
  
file_path: dm-haiku/examples/impala/actor_test.py
imports: from unittest import mock
  from absl.testing import absltest
  from bsuite.environments import catch
  import dm_env
  from examples.impala import actor
  from examples.impala import agent
  from examples.impala import haiku_nets
  from examples.impala import learner
  from examples.impala import util
  import jax
  import numpy
  import tree
label_desc: Use image node_id 1 for calling the CatchTest obj's underlying member method code with example usage: obj.setUp() without return types